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74HCT138BQ Arkusz danych(PDF) 7 Page - NXP Semiconductors |
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74HCT138BQ Arkusz danych(HTML) 7 Page - NXP Semiconductors |
7 / 19 page 74HC_HCT138 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved. Product data sheet Rev. 4 — 27 June 2012 7 of 19 NXP Semiconductors 74HC138; 74HCT138 3-to-8 line decoder/demultiplexer; inverting 10. Dynamic characteristics ΔICC additional supply current VI =VCC − 2.1 V; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; IO =0A per input pin; An inputs - 150 540 - 675 - 735 μA per input pin; En inputs - 125 450 - 562.5 - 612.5 μA per input pin; E3 input - 100 360 - 450 - 490 μA CI input capacitance -3.5 - pF Table 6. Static characteristics …continued At recommended operating conditions; voltages are referenced to GND (ground = 0 V). Symbol Parameter Conditions Tamb = 25 °C Tamb = −40 °C to +85 °C Tamb = −40 °C to +125 °C Unit Min Typ Max Min Max Min Max Table 7. Dynamic characteristics Voltages are referenced to GND (ground = 0 V); CL = 50 pF unless otherwise specified; for test circuit see Figure 8. Symbol Parameter Conditions Tamb = 25 °C Tamb = −40 °C to +85 °C Tamb = −40 °C to +125 °C Unit Min Typ Max Min Max Min Max For type 74HC138 tpd propagation delay An to Yn; see Figure 6 [1] VCC = 2.0 V - 41 150 - 190 - 225 ns VCC = 4.5 V - 15 30 - 38 - 45 ns VCC =5V; CL =15pF - 12 - - - - - ns VCC = 6.0 V - 12 26 - 33 - 38 ns E3 to Yn; see Figure 6 [1] VCC = 2.0 V - 47 150 - 190 - 225 ns VCC = 4.5 V - 17 20 - 38 - 45 ns VCC =5V; CL =15pF - 14 - - - - - ns VCC = 6.0 V - 14 26 - 33 - 38 ns Ento Yn; see Figure 7 [1] VCC = 2.0 V - 47 150 - 190 - 225 ns VCC = 4.5 V - 17 20 - 38 - 45 ns VCC =5V; CL =15pF - 14 - - - - - ns VCC = 6.0 V - 14 26 - 33 - 38 ns tt transition time Yn; see Figure 6 and Figure 7 [2] VCC = 2.0 V - 19 75 - 95 - 110 ns VCC = 4.5 V - 7 15 - 19 - 22 ns VCC = 6.0 V - 6 13 - 16 - 19 ns CPD power dissipation capacitance CL =50pF;f= 1 MHz; VI =GND to VCC [3] -67 - - - - - pF |
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